Added function to get nearby characters.

source/World.cpp

@@ -226,6 +226,20 @@ World::getPath(const sf::Vector2f& start, const sf::Vector2f& end,
 	return path;
 }
 
+/**
+ * Returns all characters that are within maxDistance from position.
+ */
+std::vector<std::shared_ptr<Character> >
+		World::getCharacters(const sf::Vector2f& position, float maxDistance) const {
+	std::vector<std::shared_ptr<Character> > visible;
+	for (auto it : mCharacters) {
+		if (thor::squaredLength(position - it->getPosition()) <=
+				maxDistance * maxDistance) {
+			visible.push_back(it);
+		}
+	}
+	return visible;
+}
 /**
  * Returns the linear distance between two areas (using their center).
  */

source/World.h

@@ -32,6 +32,8 @@ public:
 	void generateAreas();
 	std::vector<sf::Vector2f> getPath(const sf::Vector2f& start,
 			const sf::Vector2f& end, float radius) const;
+	std::vector<std::shared_ptr<Character> >
+			getCharacters(const sf::Vector2f& position, float maxDistance) const;
 
 // Private types.
 private:

source/abstract/Character.cpp

@@ -132,3 +132,11 @@ Character::move() {
 		}
 	}
 }
+
+/**
+ * Calls World::getCharacters with current position.
+ */
+std::vector<std::shared_ptr<Character> >
+Character::getCharacters(float maxDistance) const {
+	return mWorld.getCharacters(getPosition(), maxDistance);
+}

source/abstract/Character.h

@@ -34,6 +34,7 @@ protected:
 	void releaseTrigger();
 	bool setDestination(const sf::Vector2f& destination);
 	void move();
+	std::vector<std::shared_ptr<Character> > getCharacters(float maxDistance) const;
 
 // Private variables.
 private: